ICTBroadcast is multi tenant, unified communications and telemarketing software solution supporting voice, SMS, email, and fax broadcasting. Suitable for small business owners, enterprenuers, and service providers, it offers smart auto dialer capabilities and can be scaled to thousands of simultaneous calls using either VoIP or PSTN and fits most voice broadcasting scenarios. It is simple, reliable, poweful and provides a user-friendly Web portal for effective and efficient communications management.

Collax Groupware Suite is a complete collaboration, e-mail, and messaging server with Outlook MAPI support. It offers enterprise email server functions, anti-spam and anti-virus filters, GUI management, a file server for SMB, NFS, FTP, and Apple shares, backup/restore server, IM server, and fax and SMS server. The groupware offers AJAX Web mail, calendar, team calendar, contacts, and tasks, and supports ActiveSync for mobile devices. It is free for private or commercial use of up to five users.

HERMESfax is a fax document management system that offers simple workflows and feature-rich possibilities. Features include sending and receiving faxes, forwarding faxes between users, management of user documents, workflow management, and supervising the service. It is a Web-based application offering: persistence of historical documents in an SQL database (MySQL and PostgreSQL), filesystem load balancing, multi-user access, privacy and security of documents, and hierarchical management of workflows.

qtfaxstate changes the state of HylaFAX modems from Down to Busy to Ready with a simple click. This is particularly useful if you use the same phone line as your main phone and want to make sure that a fax doesn't start while you are talking on the phone.

The Taridium ipbx is a complete software-based VoIP PBX system that replaces a traditional proprietary hardware PBX. It runs on Linux without the need for extra software licenses, and is based on the SIP standard. It supports many phones and is available for free in a 5 user version.

Gemeinschaft is a PBX based on Asterisk, MySQL,
Apache, and PHP, and designed for high
availability and clustering. It provides automatic
provisioning for mass deployment, and can handle
over 10,000 users. Administration is done via
shell scripts or a Web GUI. Hot-desking and
mobility are supported. German voice prompts are
included. There is a standards-compliant Web GUI
with internationalization (and German and English
translations). Outbound and inbound routing with
full PCRE support is included.

Faxfrontend is a clean way to print to fax while
using a desktop. It provides a GUI interface to
print to fax using CUPS to Hylafax. When you
print, a box pops up that lets you provide the fax
number or find the number to use from the built in
address book. It can also run as a standalone
application to fax files or just a cover sheet.

AvantFAX allows users on any platform to view and
send faxes without having to install special
software. It also allows administrators to manage
users, their permissions, fax lines, fax
categories, etc. AvantFAX can be accessed from the
local network and remotely via Internet using
standard networking equipment.

PHP eFax is a PHP class that allows you to send and receive
faxes anywhere in the world from your PHP code on
your Web server. Processing is usually
instantaneous. It interfaces with eFax Developer
and works on any platform that runs PHP 4 or
later. It is easy to setup and use.